Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
True Hyponatremia Differential ... sodium low, uric ... and uric acid low ... #Hyponatremia #Differential ... Algorithm #Diagnosis #Nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Osmolarity 2) Urine ... Osmolarity 3) Urine ... Uric Acid - Low ... Diagnosis #Algorithm #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Hyponatremia - Differential ... Pain/Post-op β€’ Neurologic ... β€’ Drugs β€’ Pulmonary ... Hypo-osmolar urine ... #Differential #
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
EABV, Low Plasma ... β€’ Distal RTA Low-normal ... Plasma HCO3- β€’ Low ... #potassium #differential ... algorithm #diagnosis #nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
of magnesium = (urine ... serum magnesium x urine ... Hypomagnesemia #algorithm #differential ... diagnosis #causes #nephrology ... #magnesium #low
Distal Renal Tubular Acidosis (RTA)  Type 1 

Totally scuppers the kidney's acidification mechanism. Will be
diagnosis with direct urine ... Failure to acidify urine ... Distal #Diagnosis #Management ... #Nephrology #Causes ... #Differential #
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
consolidation is pulmonary ... cardiogenic edema, to differentiate ... blood flow, Kerley ... #Diagnosis #Radiology ... Consolidation #Differential
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Anti-GBM antibody β€’ Urine ... : UA, Urine protein ... non-specific, ESR usually low ... hematuria, RBC casts, low ... #diagnosis #management
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Hypophosphatemia - Differential ... leukemia Measure Urine ... β€’ Normal or Low ... - Normal or Low ... Workup #phosphate #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 β€’ Primary polydipsia (a.k.a. "psychogenic polydipsia")
 β€’
of Polyuria - Differential ... β€’ Central Dl (Low ... Polyuria Mimics (↑ urine ... frequency without ↑ urine ... Diagnosis #Causes #nephrology